meh … not so much
The rows on the number beads are not representing numbers in the units, tens, hundreds, thousands, etc, format. This approach deviates from the teaching conventions for the (western style), 100-bead abacus. For example, 1 bead on the bottom row shifted to the right is “1”. One bead added on the next row above (“the 10s row”) shifted right represents a total of “11” - not “2” as is currently displayed. A correct sum of the beads would be helpful. Please fix this.